Guys, I have aftermarket tpms in my 22's from tirerack running at 315mhz. 2 weeks ago right front sensor stopped giving reads (--) but other three were functioning ok. 2 days later all four stopped working and I get that tire failure warning light for the next day and half. After that the warning light stops coming on and I get the message tp reading after few min. of driving, but one hour of driving....still the same message. Reset tpms and still nothing. For the past week everytime I get in the car I reset the tpms but it just seems the car's ignoring the sensor signals.....

Dont want to bring to dealer since I know having aftermarket sensors let alone wheels is like having the plague...they want NOTHING to do with you!!! So what do you guys suggest? Get all new tpms or is there something I can try to salvage my current set of tpms? They're at most 6-9month old so I'm ruling out the battery issue. Any pointers would be appreciated...

 

Shouldn't after market parts have some warranty too, or is it less than 9 months? Someone at the W204 section had sensors from a faulty batch (but those did not work at all).

Could it be that there is not enough space for the sensors with 22 inch wheels and sensors getting hit at potholes or even bumps?

 

I was thinking the same way regarding the right front sensor....but what puzzles me is how the other three would not work and the car would just not display the other three readings no matter how many times I tried to reset the tpms. I'm guessing the car thinks I'm not running sensors and just shut down the receivers???

 

I wouldn't rule out the dealership just yet (unless you know for sure that they'll give you a hard time).

When I installed Brabus wheels + TPMS's on my prev. S550 the whole job was done at the MB dealership. They were great in fixing Brabus's issues too!